4BVT

Cyanuric acid hydrolase: evolutionary innovation by structural concatenation

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3ZGR	PDB ENTRY 3ZGR

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7		THE PROTEIN WAS DIALYSED AGAINST HEPES BUFFER WITH BARBITURIC ACID, THE FINAL CONCENTRATION OF PROTEIN WAS 2 MG/ML AND THIS WAS SET UP IN A 1:1 RATIO AGAINST 180 MM NACL, 31% V/V PEG 400 AND 100 MM HEPES PH 7.0.

Crystal Properties
Matthews coefficient	Solvent content
2.79	55.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 129.23	α = 90
b = 129.23	β = 90
c = 233.791	γ = 120

Symmetry
Space Group	H 3 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 315	MIRRORS	2012-10-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	AUSTRALIAN SYNCHROTRON BEAMLINE MX2		Australian Synchrotron	MX2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	3.09	43.1	99.5	0.14	12.9	9.7		13929		1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3.09	3.26	96.5		0.62	3.6	9.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 3ZGR	3.1	43.18	13210	719	99.31	0.16604	0.16374	0.20891	RANDOM	63.99

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
0.08	0.08		0.08		-0.25

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.815
r_dihedral_angle_4_deg	17.192
r_dihedral_angle_3_deg	15.385
r_dihedral_angle_1_deg	5.326
r_mcangle_it	4.118
r_scbond_it	2.787
r_mcbond_it	2.503
r_mcbond_other	2.49
r_angle_refined_deg	1.144
r_angle_other_deg	0.859
r_chiral_restr	0.053
r_bond_refined_d	0.007
r_bond_other_d	0.005
r_gen_planes_refined	0.004
r_gen_planes_other	0.002
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcangle_other
r_scbond_other
r_scangle_it
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5362
Nucleic Acid Atoms
Solvent Atoms	9
Heterogen Atoms	34

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
SCALA	data scaling
PHASER	phasing